Global Patent Index - EP 1013800 A3

EP 1013800 A3 2000-11-15 - Process for pickling stainless steel

Title (en)

Process for pickling stainless steel

Title (de)

Verfahren zum Beizen von Edelstahl

Title (fr)

Procédé de décapage d'acier inoxydable

Publication

EP 1013800 A3 (DE)

Application

EP 99123620 A

Priority

AT 212998 A

Abstract (en)

[origin: EP1013800A2] Chemical and/or electrochemical pickling of high grade steel is carried out in an acidic liquid that contains no nitric acid. Consumed electrolyte solution from electrochemical neutral salt pickling lines, preferably sodium sulphate pickling lines, is added.

IPC 1-7 (main, further and additional classification)

C25F 1/06; C23G 1/08

IPC 8 full level (invention and additional information)

C23G 1/02 (2006.01); C23G 1/08 (2006.01); C25F 1/06 (2006.01)

CPC (invention and additional information)

C23G 1/081 (2013.01); C23G 1/086 (2013.01); C25F 1/06 (2013.01)

Citation (search report)

Designated contracting state (EPC)

AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

DOCDB simple family

EP 1013800 A2 20000628; EP 1013800 A3 20001115; EP 1013800 B1 20030813; AT 406486 B 20000525; AT A212998 A 19991015; BR 9905932 A 20000912; CN 1195898 C 20050406; CN 1261630 A 20000802; DE 59906582 D1 20030918; KR 100562094 B1 20060317; KR 20000048256 A 20000725; US 6398876 B1 20020604; ZA 9907788 B 20000630